Omron NE1A-SCPU01 - 07-2009 Operation Manual page 46

System Configuration
Monitoring DeviceNet or DeviceNet Safety Systems via Ethernet from Controller Made
by Other Manufacturers
Safety controls can be monitored by accessing
devices on the DeviceNet Safety network using the
UDP service from a general-purpose controller on
the Ethernet network (e.g., a PLC or computer).
Command via UDP
ED Router
(NE1A-EDR01)
Monitoring a DeviceNet Safety (or DeviceNet) System from a PLC or Controller on an
EtherNet/IP Network
Devices on a DeviceNet Safety network can be
accessed from a general-purpose Controller (such as a
PLC or personal computer) on Ethernet, and safety
control can be monitored.
12
If the networks are constructed using an NE1A-EDR01 EtherNet/IP-
DeviceNet Router, devices on DeviceNet or DeviceNet Safety network can be
accessed from general-purpose controllers (e.g., PLCs or computers) in an
Ethernet network using the UDP service. This enables monitoring a
DeviceNet or DeviceNet Safety control system via Ethernet from a machine
controller or monitor computer that does not support a DeviceNet interface.
This can be used to easily add a DeviceNet Safety control system to an exist-
ing system.
PLC (OMRON or other maker)
OR
Ethernet
Socket service (UDP)
Command via UDP
DeviceNet Safety
DeviceNet Safety
DST1-series Slaves
Note Refer to the EtherNet/IP-DeviceNet Router Operation Manual (Cat. No. Z912)
for details on the NE1A-EDR01 EtherNet/IP-DeviceNet Router.
As shown in the following diagram, a DeviceNet Safety (or DeviceNet) system
can be monitored using EtherNet/IP Standard Target I/O from a PLC or Con-
troller on an EtherNet/IP network via an NE1A-series Controller that supports
EtherNet/IP.
OMRON PLC or PLC from another maker
or
Ethernet
NE1A-series Controller
(supporting EtherNet/IP)
DeviceNet Safety
DST1-series
DeviceNet Safety Slaves
Computer
Personal computer
Section 1-2
NE1A Safety Network Controller
DeviceNet Safety
DeviceNet Safety
DST1-series Slaves
NE1A-series Controller
(supporting EtherNet/IP)
DeviceNet Safety
DST1-series
DeviceNet Safety Slaves